Good luck! I’m sure you can do it :)
Answer:
By definition, tissues are absent from unicellular organisms. Even among the simplest multicellular species, such as sponges, tissues are lacking or are poorly differentiated. But multicellular animals and plants that are more advanced have specialized tissues that can organize and regulate an organism’s response to its environment.
Differentiation is the process that creates specialized cells.
B. The amount of waste would build up and the toxins produced would harm the animals and humans
The tennis ball. Because of less mass
